Facebook API exception Invalid OAuth access token signature..

Facebook API exception Invalid OAuth access token signature..

#0 [internal function]: Facebook->_graph('666265876', Array)
#1 /var/www-sites/drupal/dev/sites/all/libraries/facebook-php-sdk/src/facebook.php(492): call_user_func_array(Array, Array)
#2 /var/www-sites/drupal/dev/sites/scratch.8327.co.za/modules/fb/fb.module(1281): Facebook->api('666265876', Array)
#3 /var/www-sites/drupal/dev/sites/scratch.8327.co.za/modules/fb/fb_user.module(743): fb_api('666265876')
#4 /var/www-sites/drupal/dev/includes/module.inc(1002): fb_user_form_user_profile_form_alter(Array, Array, 'user_profile_fo...')
#5 /var/www-sites/drupal/dev/includes/form.inc(1038): drupal_alter(Array, Array, Array, 'user_profile_fo...')
#6 /var/www-sites/drupal/dev/includes/form.inc(316): drupal_prepare_form('user_profile_fo...', Array, Array)
#7 /var/www-sites/drupal/dev/includes/form.inc(188): drupal_build_form('user_profile_fo...', Array)
#8 [internal function]: drupal_get_form('user_profile_fo...', Object(stdClass))
#9 /var/www-sites/drupal/dev/includes/menu.inc(501): call_user_func_array('drupal_get_form', Array)
#10 /var/www-sites/drupal/dev/index.php(22): menu_execute_active_handler()
#11 {main}

$_REQUEST:
Array
(
    [destination] => admin/people
)


REQUEST_URI:
/user/2/edit?destination=admin%2Fpeople&